Last year I got cake in shape of Jameson cake. This year, I was surprised by cake being an idea of my dream-car Mitsubishi EVO:
It was fully edible (including 100% chocolate tires, and spoiler), and very good.
To the potential nay-sayers: I know it's not really shape of Evo. But it had “three diamonds" on both front and back, clearly visible “Evo" signs, so it definitely counts 🙂